15 December 2023

Reindeer, also known as caribou (Rangifer tarandus), have been hunted by humans for thousands of years. An individual reindeer is vulnerable but the herd has a defense mechanism that protects them from humans, polar bears, grizzlies, wolves and other predators. It’s called a reindeer cyclone.

For another view, see this video excerpt from PBS Nature’s program about Vikings that shows reindeer making a cyclone to evade a hunter and it works.